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New posts in universal-algebra
What sorts of (sets of) equations are "approximately compatible" with the $2$-sphere?
general-topology
logic
metric-spaces
universal-algebra
Is it true, that for any two non-isomorphic finite groups $G$ and $H$ there exists such a group word $w$, that $|V_w(G)| \neq |V_w(H)|$?
abstract-algebra
group-theory
finite-groups
universal-algebra
verbal-subgroups
When is a bijective homomorphism an isomorphism?
category-theory
group-homomorphism
universal-algebra
Does this theorem/collection of theorems have a name? Or is it just seen as obvious?
abstract-algebra
category-theory
definition
universal-algebra
morphism
why is a nullary operation a special element, usually 0 or 1?
abstract-algebra
universal-algebra
Most general form of Cayley's theorem?
abstract-algebra
group-theory
category-theory
lattice-orders
universal-algebra
On group varieties and numbers
abstract-algebra
group-theory
number-theory
finite-groups
universal-algebra
Subdirect embedding of a quotient algebra
abstract-algebra
universal-algebra
congruence-relations
The Use of Ordinals and Cardinals in Recursive Proofs
elementary-set-theory
set-theory
ordinals
universal-algebra
Why are structures interesting?
abstract-algebra
logic
soft-question
model-theory
universal-algebra
Which texts do you recommend to study universal algebra and lattice theory?
reference-request
logic
universal-algebra
algebraic-logic
Why is it that the congruence relations usually correspond to some type of subobject?
abstract-algebra
category-theory
soft-question
ideals
universal-algebra
Lattices are congruence-distributive
lattice-orders
universal-algebra
congruence-relations
A categorical first isomorphism theorem
abstract-algebra
category-theory
universal-algebra
How to prove these algebras are subdirectly irreducible, using the claim about their congruence relations? Am I proceeding correctly?
solution-verification
modular-arithmetic
relations
universal-algebra
congruence-relations
Suggestions for a learning roadmap for universal algebra?
reference-request
self-learning
universal-algebra
What is the importance of “variety of algebras” in Universal Algebra?
model-theory
universal-algebra
Classification of Finite Topologies
abstract-algebra
general-topology
universal-algebra
Is a poset an algebra?
category-theory
universal-algebra
How to create multiplication table ("Cayley table") for an algebra or class of algebras?
abstract-algebra
universal-algebra
cayley-table
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